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TLS negotiated hashing algorithm: SHA-256

Percentage of IRC SSL/TLS servers with hashing algorithm negotiated as SHA-256 hashing algorithm. Showing percentages for Ratbox servers only.

About this test result: The SHA-256 hashing algorithm is a 256 bit hash function. It is still considered secure today, although there is a tendency to move to SHA-384 or better.
Note on statistics: there is a difference in the gathering of TLS servers between 2017-2019 and 2020-onwards, see SSL/TLS statistics on the data page.

Table

Percentage of IRC SSL/TLS servers with hashing algorithm negotiated as SHA-256 hashing algorithm. Showing percentages for Ratbox servers only.
Version Sep 2017Dec 2018Dec 2019Dec 2020Dec 2021
3.0 6% 8% 8% 5% 6%
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